Weather Forecast for Leiden

South Holland, Netherlands

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Current Weather - Leiden: 21°C

South Holland, Netherlands

Clear

Feels like 18°C

Wind

15 km/h ESE

Humidity

36%

Pressure

1024 mb

UV Index

0

Visibility

10 km

Sunny

Sunny

Thursday, August 13, 2026

High

33°C

Low

19°C

Rain Chance

1%

Hourly Forecast

Clear 21°C
01:00
Clear 21°C
02:00
Clear 20°C
03:00
Clear 19°C
04:00
Clear 19°C
05:00
Clear 19°C
06:00
Sunny 19°C
07:00
Sunny 20°C
08:00
Sunny 22°C
09:00
Sunny 25°C
10:00
Sunny 27°C
11:00
Sunny 29°C
12:00
Sunny 31°C
13:00
Sunny 32°C
14:00
Sunny 33°C
15:00
Sunny 33°C
16:00
Sunny 33°C
17:00
Sunny 32°C
18:00
Sunny 31°C
19:00
Sunny 29°C
20:00
Sunny 27°C
21:00
Clear 26°C
22:00
Clear 26°C
23:00
Aug 14

Day Statistics

Maximum Wind

15 km/h

Humidity

34%

Precipitation

0 mm

UV Index

6

Visibility

10 km

Rain Chance

1%

Snow Chance

0%

Sun & Moon

Sunrise

06:22 AM

Sunset

09:11 PM

Moonrise

06:45 AM

Moonset

09:24 PM

Moon Phase

New Moon

Moon Illumination

2%

Air Quality

PM2.5

7.7

μg/m³

PM10

12.5

μg/m³

NO₂

16.1

μg/m³

O₃

76.9

μg/m³

SO₂

1.3

μg/m³

CO

194

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

High-temperature - Warnings for Zuid-Holland - The Netherlands

Zuid-Holland Aug 12, 02:06 PM - Aug 14, 02:00 PM
Severity: Moderate Urgency: Future

National Heat Wave plan due to a prolonged period of very warm weather. BE AWARE that high temperatures are expected. Some health risks amongst vulnerable people like the elderly and very young are possible.

Event: Moderate high-temperature warning Certainty: Likely Category: Met

High-temperature - Warnings for Noord-Holland - The Netherlands

Noord-Holland Aug 12, 02:06 PM - Aug 14, 02:00 PM
Severity: Moderate Urgency: Future

National Heat Wave plan due to a prolonged period of very warm weather. BE AWARE that high temperatures are expected. Some health risks amongst vulnerable people like the elderly and very young are possible.

Event: Moderate high-temperature warning Certainty: Likely Category: Met

When to visit Leiden?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: June July September

January

☀️
7°C
💧
11 Days of rain
❄️
Moderate snowfall
🥶 Coldest month

February

☀️
7°C
💧
9 Days of rain
❄️
Moderate snowfall

March

☀️
10°C
💧
9 Days of rain
❄️
Moderate snowfall

April

☀️
13°C
💧
7 Days of rain
❄️
No snowfall
🌵 Driest month

May

☀️
16°C
💧
9 Days of rain
❄️
No snowfall

June

☀️
19°C
💧
10 Days of rain
❄️
No snowfall
Best time to visit

July

☀️
21°C
💧
12 Days of rain
❄️
No snowfall
Best time to visit

August

☀️
22°C
💧
14 Days of rain
❄️
No snowfall
🔥 Hottest month

September

☀️
19°C
💧
14 Days of rain
❄️
No snowfall
Best time to visit

October

☀️
15°C
💧
14 Days of rain
❄️
No snowfall
🌧 Wettest month,

November

☀️
11°C
💧
13 Days of rain
❄️
Light snow possible

December

☀️
8°C
💧
13 Days of rain
❄️
Moderate snowfall